I need to edit product page in shopify - html

Question

I want to change the product page size because it takes alot fo space and make the table in the center
This is the code
what should I do with it.
<div class="detailmodule_html">
<div class="detail-desc-decorate-richtext">
<div class="detailmodule_html">
<div class="detail-desc-decorate-richtext">
<h2 style="text-align: center;"><strong>Product Specification</strong></h2>
<table width="310" height="608">
<tbody>
<tr style="height: 33px;">
<td style="width: 310.047px; height: 33px;">
<p><strong> Materials</strong></p>
</td>
<td style="width: 218.953px; height: 33px;"><strong>Aluminum</strong></td>
</tr>
<tr style="height: 19px;">
<td style="width: 310.047px; height: 19px;"><strong>Battery</strong></td>
<td style="width: 218.953px; height: 19px;"><strong>Lithium battery</strong></td>
</tr>
<tr style="height: 19px;">
<td style="width: 310.047px; height: 19px;"><strong>Size (Closed state)</strong></td>
<td style="width: 218.953px; height: 19px;"><strong>7.66*7.66*3.93 in</strong></td>
</tr>
<tr style="height: 19px;">
<td style="width: 310.047px; height: 19px;"><strong>Size (Expanded state)</strong></td>
<td style="width: 218.953px; height: 19px;"><strong>7.66*7.66*39.3 in</strong></td>
</tr>
<tr style="height: 19px;">
<td style="width: 310.047px; height: 19px;"><strong>Fan Size</strong></td>
<td style="width: 218.953px; height: 19px;"><strong>8.66 in</strong></td>
</tr>
<tr style="height: 19px;">
<td style="width: 310.047px; height: 19px;"><strong>Wind speed gear</strong></td>
<td style="width: 218.953px; height: 19px;"><strong>3+1</strong></td>
</tr>
<tr style="height: 19px;">
<td style="width: 310.047px; height: 19px;"><strong>Control method</strong></td>
<td style="width: 218.953px; height: 19px;"><strong>Button press</strong></td>
</tr>
<tr style="height: 19px;">
<td style="width: 310.047px; height: 19px;"><strong>Air supply principle</strong></td>
<td style="width: 218.953px; height: 19px;"><strong>Air circulation</strong></td>
</tr>
<tr style="height: 134px;">
<td style="width: 310.047px; height: 134px;"><strong>Wind modes</strong></td>
<td style="width: 218.953px; height: 134px;">
<p><strong>1st gear: Soft wind</strong></p>
<p><strong> 2nd gear: Refreshing wind </strong></p>
<p><strong>3rd gear: Strong wind</strong></p>
<p><strong>4th gear: Natural wind</strong></p>
</td>
</tr>
<tr style="height: 33px;">
<td style="width: 310.047px; height: 33px;"><strong>Charger Specifications</strong></td>
<td style="width: 218.953px; height: 33px;">
<p><strong>5V/2A</strong></p>
</td>
</tr>
<tr style="height: 33px;">
<td style="width: 310.047px; height: 33px;"><strong>Charging time</strong></td>
<td style="width: 218.953px; height: 33px;">
<p><strong><5h</strong></p>
</td>
</tr>
<tr style="height: 100px;">
<td style="width: 310.047px; height: 100px;"><strong>Wind speed<br></strong></td>
<td style="width: 218.953px; height: 100px;">
<p><strong>1st gear: 2.3m/s </strong></p>
<p><strong>2nd gear:3.0m/s</strong></p>
<p><strong>3rd gear:4.0m/s</strong></p>
</td>
</tr>
<tr style="height: 33px;">
<td style="width: 310.047px; height: 33px;"><strong>Noise rating<br></strong></td>
<td style="width: 218.953px; height: 33px;">
<p><strong>30-40db</strong></p>
</td>
</tr>
<tr style="height: 4.92188px;">
<td style="width: 310.047px; height: 4.92188px;"><strong>Continuous operating time on a full charge</strong></td>
<td style="width: 218.953px; height: 4.92188px;">
<p><strong>15-5h</strong></p>
</td>
</tr>
</tbody>
</table>
I want to decrease the height
I want to increase the width to be almost full page and in the center.